Sewing machine



April 29, 1930. c. SEAMAN ET AL 1,756,036

SEWING MACHINE Filed March 26, 1927' 2 Sheets-Sheet l Mmv TQRS ATTORNEY- April 29, 1930. c, SEAMAN El AL SEWING MACHINE Filed March 26, 1927 2 Sheets-Sheet 2 M INVENTOR ATTORNE CHARLES SEAMAN, 01

Patented Apr. 29; 1930 UNITED STA HOLLIS,.AND GER'HABD BRAF, OF OZONE PARK, NEW YORK} sen) BRA! assrenon 'ro SAID SEAMAN sawme MACHINE I Application filed March as, 1927. serial No. 178,532.

This invention relates to a novel means forforming piping, particularlythe kind of pip- .ing adapted .for application to the edge of a piece of material such as dress goods; In thepast it has been common to apply a piping by stitching, the stitching extendlngcompletely through both folds of piping as well as the material and being visible on both sides of the material. It is one of the primary objects ofour invention to so construct the piping that. the stitching will be invisible from one side thereof.

Another important object of our invention is to provide an apparatus by means of which the piping may be stitched at one operation. The details of this-apparatus will be better understood from the following specification;

' In the accompanying drawings in which We have shown a selected embodiment of, our

invention:

Figure 1 is a front view of a sewing machine having applied thereto an attachment for the practice of our invention.

Figure 2 is an end view of a portion of the machine shown in Figure 1, as viewed from left of that figure.

- Figure-3 is a perspective view of a port on of the attachment shown in Figure 1.

Figure 4 is a section on the line 4-4 of Figure 3. v

Figure 5 is a view of the leftend of the attachment as viewed in Figure 3. Figure 6 is a perspective view of so much of the entire apparatus as is necessary for an understanding of theinyention.

Figure 7 is a diagrammatic view illustrating the folding of the binding and filler to form the piping.

Figure 8 1s a cross-sectionalview through a finished piping, unattached to other material. I

Figure 9 is, a pers ectlve view of a section of piping constructe according to our invention.

Referring now to the drawings the numeral 1 designates a suitable base upon which is secured the .head 2 of a sewing machine. The exact type of sewing machine is immaterial as our invention is adapted to be employed with any of the usual types. For the purposes of illustration we have, 'shown a well-knownform of machine operated by the belt 3 which reciprocates a needle 4 in a vertical path." v I The thread 5 is contained on the usual spool 6 and is threaded through the usual I guides and other devices to the needle; Anyusual and suitable feeding mechanism 7 is disposed beneath the needle to feed the cloth or other material which is being sewed.

Mounted on the head 2 is a suitable bracket 8 on the end of which is supported a pair of spools 9 and 10, these spools being loosely mounted for free rotation on hearings on the bracket. The spool 9 is designed to carry the I binding 11 from which the piping is formed and the other" spool is-intendedto carry the filler 12 which is disposed inside of the binding to form the putt. finish that is often desired, and for another purpose which will be explained presently. By the term bindingitis to be understood that we refer to any strip of suitable material which may be used to form a piping even though it may 'not be used as a binding on a piece of particular material.

The binding is supported by a ate 13 which may be conveniently formed 0 a wire folded back and forth upon itself in the manner shown. The binding is threaded through the gate which is supported upon an attache ment 14. This attachment is adapted to re ceive the binding and the filler and-fold them into correct formation for stitching.

The construction of the attachment. may be"- best understood from an inspection- 0f Fi ures 2, 3,4 and 5, and,.referri'ng thereto, it will be seen that th"attachment comprises: three guides. The binding and the filler enter the attachment at the right hand-end as viewed in Figures 1, 3 and 6 and at this end there are provided the two guides 15 and 16. The entire attachment may conveniently be, made of sheet metal and the guides may be formed in the manner indicated in Figure 4 by folding the metal upon itself. The guide 15 is adapted to receive a binding 11 and'the guide 16 the filler 12.

The lower part 17 of the guide 15 extends toward the needle and forms the lower part of a third guide 18, the upper portion of which is formed by means of wings 19 turned up from the portion 17 .and secured to the top of the back 20, this back forming an extension of the upper portion of the guides 15 and 16.

It .is to be understood that the bindingis threaded through the guides 15 and 18, while the filler 12 is threaded through the guides 16 and 18. When the binding passes through the guide 15 it is in the form of an inverted U which is turned into a W by the fact that the guide 18 will turn up the edges of the binding. The filler, as best shown in .Figure 7, is folded on itself as indicated at 21 and then is received beneath the fold 22 of the binding The points indicated at 21 and 22 in Figure 7 are actually closely adjacent each other but the tiller has been shown as separated from the binding for purposes of illustrating the invention.

, As the binding with the filler folded therein leaves the guide 18, it is received bet-ween the walls of the recess 23, which causes the edge folds 22 and 24 of the binding to double inwardly as indicated in Figures 2 and 7. The attachment is provided with a pair of guide members 25 and 26 which are in substantial alignment with the walls of the recess 23. These members serve to keep the binding from pushing outwardly from the recess 23, particularly when there is a seam in the binding.

After leaving the attachment at the recess 23 the binding is passed beneath the foot 27 which is preferably formed of a spring plate disposed beneath the guide member 25, as best shown in Figure 2. The edge of the foot is disposed in position to guide the fold 22 beneath the point of the needle 4, as shown at the point designated at 28 in Figure 2. It will be' remembered that this fold 22 contains the filler 12 which is also folded. At this stage it will be noted that the two edge follds are disposed facing one another and extending in a vertical direction, the fold 22 is bent backwardly over the foot 27, the bend extending transversely of the length, so that at this point the portion of the fold 22 above the foot 22, through the filler, and completely through the fold 24, and then as the folds pass beneath the foot the stitching at 28 is concealed. The action will behest understood from Figure 7 wherein the binding and filler are shown removed from the machine. It will be seen that the needle 4 passes through the under layer of the fold 22, catching the portion of the fold which is positioned under the needle by the foot 27. The under layers of the two folds 22 and 24 are then brought into engagement with each other as they are fed beneath the foot 27 by the mechanism 7, thus concealing the stitching on the fold 22 which then will occupy the position shown approximately in Figure 7. The stitching will pass through the lower fold 24, through the under layer of the upper fold 22 and through the filler 21 and then will be folded down on it self in a direction substantially parallel to the length of the binding. The thread 29 in Figure 8 is shown folded at 30 and this fold is shown extending transversely of the binding to a slight extent for the purposes of illustration. It is to be understood, however, that this folding of the thread takes place substantially in the direction of the line of stitching, so that the penetrations formed by the needle as it enters and leaves the under layer of the fold 22 are substantially parallel to the length of the binding and form a substantially straight line. The portion or strand of thread which is referred to above as being folded lengthwise of the binding forms a connection between the pertions of the stitches which penetrate the material, and it will be noted that these strands will be disposedbeneath the lower layer of the fold 22, but above the lower fold 24. Other strands will of course be located within the filler at 30. p

The foot 27 must be adjusted exactly to position so that the needle will have enough material on which to catch a stitch. In actual practice the foot is placed so that it will be slightly bent on each actuation of the needle by, the edge thereof. It is necessary to provide means for an accurate-adjustment of the foot and for that purpose we mount the foot on a suitable leg 31 which is provided on its back face with a groove 32 which receives the vertical rod 33, the leg being secured in position by a set screw 34. The 1'.

front of the leg is provided with a set screw 35 contacting with the rod 33 whereby the foot may be accurately adjusted in respect to the needle.

The attachment 14 may be supported in any suitable manner exemplified by a bracket 36 pivoted at 37 on a block 38. This arrangement admits raising and lowering of the attachment about the pivot 37 and the attachment may be held in either its upper or lower 7 6 and it will be seen that the edge 43 thereof is guided between the two folds of the binding to form the piping uponthe edge of the material. The material has been omitted from the other views to simplify the disclosure and to aid in the understanding of the invention. 7

From the above it will be seen that we have provided a novel means of making piping and sewing it to a piece of material. The at-' tachment' may be cheaply made and readily secured to a. standard sewing machine. The

gist of the invention resides in turning under A I one edge of a binding so asto form a fold, the under layer of which is brought into position facing the other edge of the binding, and

in'this position stitchin g throughthe under layerof the fold so as to secure it to the portion of the binding which it faces. The filler aids. materially in doing this for reasons pointed "out above. It will be seen that the fold is bent transversely of its length and brought into line with the feed of the material or. with the length of the piping. The stitching is then performed as described above. In the claims we refer to the stitching of the under layer of the fold to the binding adjacent its other edge. It is to be understood that the stitching takes place at a distance "from this other edge, this distance being variable to meet individual requirements of particular pieces of work. The word adjacent is used to define a location in respect to the up perlfold and by adjacent is meant relatively near to the other edge of more loopsso as to form more bends therein.-

the binding as compared with the upper fold.

The gate 13 forms a convenient means for applying suitable tension to the binding. It will be seen that the. gate comprises a plurality of loops between which the binding may be threaded and the tension may be increased by threading the binding through The additional thickness for the stitching and also for the pufi'cfifect has been shown as being formed by-a separate piece of material forming a .filler but it will be obvious. to those skilled in the art that this additional thickness may be formed by means of additional material in the binding itself. For

example, the binding may be made considerably wider than shown and one edge turned under sufliciently to form the filler and also to supply the puff effect.

We are aware that various other changes in details of construction and operation Wlll be apparent to those skilled in the art and therefore we do not intend to limit ourselves except by the appended claims.

We claim:

1. A sewing machine comprising means to guide a binding into position to be stitched to a piece of material, means for guiding a filler strip along one longitudinal edge of said binding, means for inturning the edge of said binding carrying the filler whereby the filler also folds upon itself, and means to fold the binding about the edge of said material, and means for stitching said edges of the binding to said material.

2. A sewing machine comprising a reciprocating needleand a foot having its edge disposed in close proximity to the path of travel of said needle-and being of resilient material to yield in a direction away from said needle.

3. A sewing machine comprising a reciprocating needle, a foot having its edge. disposed in close proximity to the path of travel of said needle and being of resilient material to yield'in a direction away from said needle, and means to adjust said foot in relation to said needle.

4.7A sewing machine comprising a reciprocating needle, a foot having its edge disposed in close proximity .to the path of travel of said needle and being of resilient material to yield in a direction away from said needle,

means to support a supply of binding, means to turn under one edge of said binding'to' form a fold, and means to guide said fold beneath said foot in position wherein said needle first enters the outer face of the under layer of said fold and then emerges from said outer face without catching the upper layer thereof.

5. Asewing machine comprising a reciprocating needle, afoot having its edge disposed in close proximity to the path of travel of said needle and being of resilient material to'yield in a direction away from said needle, means to support a supply of binding and a supply offiller, a guide member to double the binding longitudinally and including means to turn under one edge of said binding to form an, edge fold and to guide said filler within said edge fold, said guide further including means to guide said fold beneath said foot in position-wherein said needle first enters the outerface of the under layer of said edge fold and then emerges from said outer face without catching the upper layer Y thereof.

'6. A sewing machine comprising a vertically moving needle, means to feed a binding. means to guide a filler along one edge of said binding beneath said needle, means to turn under said edge of the binding u on said filler to form an edge fold, means or doubling said binding along a substantially longitudinal line, and means to guide said edge fold with said filler beneath said needle in position for-said needle to.first enter and then edge of a binding to form a fold with upper and lower layers, means to guide a filler within said fold, and means to guide said fold with said filler beneath said needle in position for said needle to first enter and then' leave the under layer. of said fold from the under side thereof, said needle passing through said filler.

8. A sewing machine comprising a vertically moving needle, means to feed material beneath said needle, means to turn under one edge of a-binding to form a fold with upper and'lower layers, means to fold a filler and guide it within said fold 'of the binding, and means to guide said fold of the binding with the filler therein beneath said needle in position for said needle to first'enter and then leave the underlayer of said fold from the under side thereof; r

.9. A sewing machine comprising means for turning under one edge of a binding to form a fold with upperand lower layers, a presser foot over the edge ofwhich-said fold is bent,

and-means to stitch at said bend through said lower-layer and through said binding adjacent its other edge without stitching throughsai'd upper'layer.

1() A sewing machine comprising means for turning under one edge of a binding to form a fold with upper and lower layers, means for guiding a filler within said fold, a presser foot over the edge of which said fold is bent and means to stitch at said bend through said lower layer and through said binding adjacent its other edge without stitching through said upper layer.

l 1. A sewing machine comprising'apresser foot having an edgedisposed at substantially right angles to the feed of material, means for turning under one edge of a binding to form a fold with upper and lower layers,

said fold being bent over the edge of said foot,

and means to stitch at said'bend through'said lower layerand through said binding adjacent its other edge without stitching through said upper. layer.

12. A sewing machine comprising a presser foot formed of resilient material and having one edge disposed at substantially right angle's to the feed of material, a vertically mov-' ing needle adapted to move in a plane adjacent the edge of said foot, means to'turn under one edge of a binding to form a fold with upper and lower layers, said fold being bent over said edge of the foot in a line substantially at right angles to the feed of the material and whereby said needle may pass edge without stitching through through said lower layer of said fold without passin through said upper layer.

13. sewing'machine comprisin a member through which a binding is a apted to be moved, a guide in saidmember'adapted' to turn under one edge of the binding passing therethrough to form a fold, a second guide adapted to guide a filler within said fold, and

a resser' foot having anedge disposed at su stantially right angles to the feed of material and disposed adjacentone end of said member in position such that the folded binding coming from the member will be bent over the edge'of said foot and beneath the same.

14. A sewing machine comprising a member through which a binding is adapted to be moved, a guide in said member adapted to turn under one edge of the binding passing therethrough to form a fold, a second guide adapted to guide a filler within said fold, a presser foot having an edge disposed at substantially right angles to the feedof material and disposed adjacent one end of said member in position such that the folded binding coming from the member will be bent over the edge of said foot and beneath the same, and a shoe adapted to guide a piece of material into for turning under one edge of a binding to form a fold with upper and lower layers, a guide over whichsaid fold is bent and means to stitch said bendthrough said lower layer andthrough said binding adjacent its other said upper layer.

16. A sewing machine comprising a needle, A means to turn under an edge of abinding to form an edge fold, means to bring said fold into position facing. the oppositeedge of said binding, and means to position said fold and said opposite edge so that the needle enters and emerges from the same surface ofthe under layer of said fold in its penetrating thrust.

= 17 A sewing machine comprising a needle, meansdo turn under both edges of a binding to form edge folds, means to bring said folds into position facing each other, and means to position said folds so that the needle enters and emerges from the same surface of the under layer of-one ofsaid folds in its penetrating thrust.

sition facing the oppositeedge of said binding, means to position said'fold in a substan- .18. A sewing machine comprising a needle tially vertical direction when the stitching takes place so that the needle entersv and emerges from the same surface ofthe under layer of said fold in its penetrating thrust.

19. A sewing machine comprising a needle adapted to be vertically reciprocated, means to turn under both edges of a binding to form ed e folds, means to bring said folds into po- 5 sit1on facing each other, and means to position one of said folds ina' substantially vertical direction when the stitching'takesplace so that the needle enters and emerges from the same surface of the under "layer of said vertically extending edge 'fold in its penetrating thrust.

In testimony whereof, we have afiixed our signatures to this specification.

CHARLES SEAMAN. GERHARD BRAF. 

